Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Gene record

GNAI2

G protein subunit alpha i2

translation score 0.55, read 2026-10-26; 1 sealed predictions, 0 held; 2 receipts.

Six readers

readerfoundscore
genetics
Open Targets
no genetic evidence; overall 0.01 from other evidence0.00
cell type
Human Protein Atlas
expressed broadly, no clear home in brain cells0.40
chemistry
Open Targets
a small-molecule pocket0.60
trials
ClinicalTrials.gov
no Parkinson's trials on record: an open field1.00
literature
PubMed
no papers tie it to Parkinson's yet1.00
pathways
Reactome
10 pathways; mostly immune signalling0.90

No case: the score is under the bar. Receipt 11087

Sealed predictions

  1. GNAI2 in dopamine neurons, braak-0.37 (p 0.329) → -0.56 (p 0.118)receipt 11093

Swarm cases

receipt 11093: GNAI2 in dopamine neurons, braak

power
full sample -0.52 (p 0.026, n 18), 95% CI -0.80 to -0.07. the interval excludes zero: something may be there, smaller than a half can see.
confounder
adjusted for sex: -0.52 (p 0.027, n 18). holds up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: -0.60 (p 0.0086, n 18). not the mix.
skeptic
leave-one-out range -0.64 to -0.46, sign flips 0; without severely affected donors -0.52 (p 0.026, n 18). robust.
cell type
strongest in OPCs: -0.60 (p 0.0080, n 18) vs -0.52 in dopamine neurons. proposing OPCs.
axis
no measure beats "tracks Braak Lewy-body stage" for GNAI2 in dopamine neurons.

follow-up registered; not confirmed in substantia nigra, an independent cohort.
follow-up GNAI2 · OPCs · braak: substantia nigra, an independent cohort: not measured

Receipts

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